Lab results:gluc.random 100 mg/dl; mcv 99.8 fl; platelet count 454 thou/mm3; eosin# 310 cells/mm3; vit d, 25-oh 17.9 ng/ml what does this mean?

Rouyghly normal.: These results are roughly normal, and don't appear to add up to any specific disorder. Your glucose is normal, so no issue there. Your MCV is slightly high, but unless you have signs of B12 or folate (folic acid) deficiency, this may be ok. Eosinophils are normal or a little high, as are platelets depending on your lab ranges. Your vit d is also slighly low or ok, so see your dr. And get vit d supplements.